Generating high-resolution global unstructured meshes
The Spherical Centroid Voronoi tessellations(SCVT) are a kind of high-quality unstructured meshes, which are adopted by well-known earth system models at home and abroad. Internationally, the open source project Message Passing Interface SCVT(MPI-SCVT) has realized the parallel SCVT generation. Howe...
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National Computer System Engineering Research Institute of China
2022-06-01
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| Series: | Dianzi Jishu Yingyong |
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| Online Access: | http://www.chinaaet.com/article/3000150263 |
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| author | Liu Zhuang Huang Xiaomeng |
| author_facet | Liu Zhuang Huang Xiaomeng |
| author_sort | Liu Zhuang |
| collection | DOAJ |
| description | The Spherical Centroid Voronoi tessellations(SCVT) are a kind of high-quality unstructured meshes, which are adopted by well-known earth system models at home and abroad. Internationally, the open source project Message Passing Interface SCVT(MPI-SCVT) has realized the parallel SCVT generation. However, although MPI-SCVT works well for the generation of general-resolution meshes, the use of MPI-SCVT presents several problems when the required mesh is of very high resolution, including the poor quality of initial mesh points, large data MPI communication problems, external library calling problems and I/O problems. For these problems, a set of solutions are proposed. Practice shows that the application of these solutions can successfully complete the generation of the global 1.9 km resolution grid, and the number of iterations is significantly reduced when reaching the same accuracy, which saves the calculation time. |
| format | Article |
| id | doaj-art-c01d368a2bb6406eb3c2593a5fc1ba71 |
| institution | Kabale University |
| issn | 0258-7998 |
| language | zho |
| publishDate | 2022-06-01 |
| publisher | National Computer System Engineering Research Institute of China |
| record_format | Article |
| series | Dianzi Jishu Yingyong |
| spelling | doaj-art-c01d368a2bb6406eb3c2593a5fc1ba712025-08-20T03:31:33ZzhoNational Computer System Engineering Research Institute of ChinaDianzi Jishu Yingyong0258-79982022-06-0148610310610.16157/j.issn.0258-7998.2226023000150263Generating high-resolution global unstructured meshesLiu Zhuang0Huang Xiaomeng1Department of Earth System Science，Tsinghua University，Beijing 100084，ChinaDepartment of Earth System Science，Tsinghua University，Beijing 100084，ChinaThe Spherical Centroid Voronoi tessellations(SCVT) are a kind of high-quality unstructured meshes, which are adopted by well-known earth system models at home and abroad. Internationally, the open source project Message Passing Interface SCVT(MPI-SCVT) has realized the parallel SCVT generation. However, although MPI-SCVT works well for the generation of general-resolution meshes, the use of MPI-SCVT presents several problems when the required mesh is of very high resolution, including the poor quality of initial mesh points, large data MPI communication problems, external library calling problems and I/O problems. For these problems, a set of solutions are proposed. Practice shows that the application of these solutions can successfully complete the generation of the global 1.9 km resolution grid, and the number of iterations is significantly reduced when reaching the same accuracy, which saves the calculation time.http://www.chinaaet.com/article/3000150263generation of unstructured meshescentroid voronoi tessellationshigh resolutioniteration optimization |
| spellingShingle | Liu Zhuang Huang Xiaomeng Generating high-resolution global unstructured meshes Dianzi Jishu Yingyong generation of unstructured meshes centroid voronoi tessellations high resolution iteration optimization |
| title | Generating high-resolution global unstructured meshes |
| title_full | Generating high-resolution global unstructured meshes |
| title_fullStr | Generating high-resolution global unstructured meshes |
| title_full_unstemmed | Generating high-resolution global unstructured meshes |
| title_short | Generating high-resolution global unstructured meshes |
| title_sort | generating high resolution global unstructured meshes |
| topic | generation of unstructured meshes centroid voronoi tessellations high resolution iteration optimization |
| url | http://www.chinaaet.com/article/3000150263 |
| work_keys_str_mv | AT liuzhuang generatinghighresolutionglobalunstructuredmeshes AT huangxiaomeng generatinghighresolutionglobalunstructuredmeshes |